I believe that this is about greek mythology. Chiron is the guardian of Hell. He transports souls to Hell in his boat. I do agree with the others in the sense of not asking for help. He never asks for any help. He does his job by himself and strengthens himself that way. Which is why he has never had to ask for anything stronger.

Its definitly about a guy and his relationship with a girl. he found a girl that was different than everyone else. he asked her out and she said yes. she is the flower in the field of weeds. i think that he was using the girl for something and he changed her into something that she didnt want to be. thats the browning petals. so he he let her go and let her return to the normal person that she was. he felt really bad about that and now it makes his heart burn. he realizes that he messed up and wishes that he could have a normal relationship with that person. to him that person is a figurative angel.

i think its about wanting more. we are never happy with what we have and we never truly appreciate what we have. we are always wanting things that are new or better than the last model.